Which of the reactions are spontaneous (favorable)?

a. 2H2O(g)⟶2H2(g)+O2(g) Δ𝐺=457 kJ/mol

b. CH4(g)+2O2(g)⟶CO2(g)+2H2O(l) Δ𝐺=−820 kJ/mol

c. 2Mg(s)+O2(g)⟶2MgO(s) Δ𝐺=−1137 kJ/mol

d. C(s)+H2O(l)⟶CO(g)+H2(g) Δ𝐺=90.8 kJ/mol

e. AgCl(s)⟶Ag+(aq)+Cl−(aq) Δ𝐺=55.6 kJ/mol

f. NH3(g)+HCl(g)⟶NH4Cl(s) Δ𝐺=−91.1 kJ/mol

  1. 👍
  2. 👎
  3. 👁
  1. Reactions are spontaneous if dG is negative.

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. Chem

    Which chemical reactions are not possible according to Dalton's atomic theory? CCl4⟶CH4 N2+3H2⟶2NH3 2H2+O2⟶2H2O+Au

  2. Chemistry

    Which of the following reactions are spontaneous (favorable)? A] 2Mg(s) + O2(g) -> 2MgO(s) Delta G = -1137 kJ/mol .. B] NH3(g) + HCl(g) -> NH4Cl(s) Delta G = -91.1 kJ/mol ... C] AgCl(s) -> Ag+(aq) + Cl-(aq) Delta G = 55.6 kJ/mol

  3. chemistry

    When 85.0 g of CH4 are mixed with 160. g of O2 the limiting reactant is __________. CH4 + 2O2 ¨ CO2 + 2H2O A) CH4 B) O2 C) CO2 D) H2O

  4. Chemistry

    Given H2(g) + (1/2)O2(g) --> H2O, ∆Hº = -286 kJ/mol, determine the standard enthalpy change for the reaction 2H2O(l) --> 2H2(g) + O2(g). Just checking... should end up with ∆Hº = 572 kJ/mol right??



  2. Chemistry

    Predict whether the following reactions will be exothermic or endothermic A) N2(g)+ 3H2(g) --> 2NH3(g) B) S(g) +O2(g) ---> SO2(g) C) 2H2O(g) ---->2H2(g) + O2(g) D) 2F(g) +F2(g) Bond H-H 432 kj/mol N-N(triple bond) 942 kj/mol O=O


    How many grams of CH4 are required to produce 43 g of Cu according to the following equation: 4CuO + CH4 --> CO2 + 2H20 + 4Cu? I already tried to work the problem myself, and I may have gotten this right, but I do not have an

  4. chemistry

    In which reaction does the smallest percentage change in volume occur? a) C3H8 (g) + 5O2(g) ---> 3CO2(g) + 4H2O(l) b) 4NH3(g) + 3O2(g) ----> 2N2(g) + 6H2O(l) c) CH4(g)+ 2O2(g) ----> CO2(g) + 2H2O(l) d) 2H2S(g) + SO2 (g) ---->

  1. Chemistry

    The equation below shows the incomplete combustion of ethene. C2H4(g) + 2O2(g) ==> 2CO(g) + 2H2O(g) If 2.70 mol C2H4 is reacted with 6.30 mol O2, a) identify the limiting reagent. b) calculate the moles of water produced. Show all

  2. help

    Methane, CH4, burns in oxygen gas to form water and carbon dioxide. What is the correct balanced chemical equation for this reaction? A. CH4 + O → H2O + CO2 B. CH4 + 4O → 2H2O + CO2 C. CH4 + O2 → H2O + CO2 D. CH4 + 2O2 →

  3. chemistry

    When 3.05 moles of CH4 are mixed with 5.03 moles of O2 the limiting reactant is __________. CH4 + 2O2 ¨ CO2 + 2H2O A) CH4 B) O2 C) CO2 D) H2O

  4. chemistry

    CH4 + 2O2 ---> CO2 + 2H2O Delta H H2O= -285.8 kJ/mole Delta H CO2= -393.3 kJ/mole What is the standard heat of formation of methane, Delta H CH4, as calculated from the data above

You can view more similar questions or ask a new question.